Pleasantville, NY, United States of America

Ravikumar Ramachandran

This inventor holds 115 USPTO granted patents and 46 published patent applications and 2 EPO patents, primarily in Semiconductor Technology (CPC class H01L29-66545). Top assignees: International Business Machines Corporation, Globalfoundries Inc., Infineon Technologies Ag. Active years: 1998-2026.

USPTO Granted Patents = 115 (Patent Applications = 46)

% Patents Active = 60.9

EPO Patents = 2 (Patent Applications = 3)

Average Co-Inventor Count = 4.1

ph-index = 14

Forward Citations = 667(Granted Patents)

Forward Citations (Not Self Cited) = 635(Dec 10, 2025)

Inventors with similar research interests:

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Location History:

Ossining, NY (US) (2001 - 2003)
Beacon, NY (US) (1998 - 2005)
Hopewell Junction, NY (US) (2012 - 2013)
Pleaseantville, NY (US) (2017)
Pleasantville, NY (US) (2003 - 2024)

Company Filing History:

94 out of 166,159

International Business Machines Corporation

Infineon Technologies Ag

patents

4. 7 out of 30,294

Siemens Aktiengesellschaft

patents

5. 3 out of 244

Infineon Technologies North America Corp.

patents

6. 1 out of 5,491

Freescale Semiconductor,inc.

patents

7. 5 out of 834,307

Other

patents

where one patent can have more than one assignee

Years Active: 1998-2026

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Areas of Expertise:

Nanosheet

FinFET

SRAM

Gate Stacks

Dynamic RAM

Shallow Trench Isolation

Self-Aligned Contact

Epitaxial Layers

Contact Structures

High-κ Dielectric

Channel Strain

Power Delivery Network

115 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12733240 - Structure with self-aligned offset gate contact and direct backside contact (2026-09-08),

2. 12684816 - Reduced gate top CD with wrap-around gate contact (2026-07-14),

3. 12575157 - Nanosheet with dual isolation regions separated by buried inner spacer (2026-03-10),

4. 12484265 - Subtractive source drain contact for stacked devices (2025-11-25),

5. 12424591 - Method and structure of forming independent contact for staggered CFET (2025-09-23),

6. 12412829 - Method and structure of forming sidewall contact for stacked FET (2025-09-09),

7. 12341099 - Semiconductor backside transistor integration with backside power delivery network (2025-06-24),

8. 12328859 - Stacked FET SRAM (2025-06-10),

9. 11961895 - Gate stacks with multiple high-κ dielectric layers (2024-04-16),

10. 11935929 - High aspect ratio shared contacts (2024-03-19),

11. 11895818 - Stacked FET SRAM (2024-02-06),

12. 11139299 - FinFET based ZRAM with convex channel region (2021-10-05),

13. 10832971 - Fabricating tapered semiconductor devices (2020-11-10),

14. 10693005 - Reliable gate contacts over active areas (2020-06-23),

15. 10573646 - Preserving channel strain in fin cuts (2020-02-25),

Title: Innovator Spotlight: Ravikumar Ramachandran

Introduction:

Ravikumar Ramachandran is a prolific inventor based in Pleasantville, NY, with an impressive track record of 107 patents to his name. His groundbreaking work in the field of semiconductor devices has earned him recognition and respect in the industry.

Latest Patents:

Among his recent patents is the development of gate stacks with multiple high-κ dielectric layers, revolutionizing semiconductor device design. This innovation involves the arrangement of interfacial and high-κ dielectric layers along with a unique Ti—Si mixing layer and gate electrode layer. Additionally, his work on high aspect ratio shared contacts showcases his expertise in enhancing stacked device performance.

Career Highlights:

Ravikumar Ramachandran has made significant contributions during his tenure at renowned companies such as IBM and Globalfoundries Inc. His keen insights and technical prowess have played a pivotal role in advancing semiconductor technologies and shaping the future of electronic devices.

Collaborations:

Throughout his career, Ravikumar has collaborated with talented individuals such as Reinaldo Ariel Vega and Emre Alptekin. These partnerships have fueled innovation and led to the development of cutting-edge solutions in the semiconductor industry.

Conclusion:

In conclusion, Ravikumar Ramachandran stands out as a visionary inventor who continues to push the boundaries of technology. With an impressive portfolio of patents and a collaborative spirit, he remains a driving force in the world of semiconductor innovations.